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YURI-3B (BS-3B) (21668)
COSPAR: 1991-060A | Alt Name: Yuri 3B
Image
Additional Sources
Launch Details
Launch Date
August 25, 1991
Launch Site
TANSC
Launch Pad
N
Launch Vehicle
H-1
Orbital Elements
NORAD ID
21668
International Designator
1991-060A
Epoch
Fri, 03 Jul 2026 20:32:14 GMT
Apogee
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Perigee
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Inclination
13.40°
Right Ascension
356.93°
Eccentricity
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Argument of Perigee
168.00°
Period
1457.59 min
Mean Motion
0.99 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
YURI-3B (BS-3B)
Alternative Name
Yuri 3B
Type
Payload
Status
Non-operational
Owner
NASDA/TSCJ
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21668U 91060A 26184.85572338 -.00000190 00000-0 00000-0 0 9992
2 21668 13.3965 356.9318 0004890 167.9968 14.1824 0.98793332129471
Source: Celestrak
Summary
YURI-3B (BS-3B), also known as Yuri 3B, is a communication satellite identified by NORAD CAT ID 21668 and OBJECT ID 1991-060A. It was launched on August 25, 1991, from TANSC using the H-1 launch vehicle with a mass of 570 kg at launch. The satellite is configured as an AS-3000 model, manufactured by GEEW for NASDA/TSCJ and has a BUS type AS3000. It measures 3.2 meters in length, 1.3 meters in diameter, and spans 15 meters with solar arrays. YURI-3B features a dry mass of 300 kg and is equipped with 3 (+3) Ku-band transponders at 120W TWTA, each providing a bandwidth of 27 MHz with an EIRP maximum of 54 dBW for communication purposes. Power comes from two deployable solar arrays and batteries. The satellite's shape is described as Box + 2 Pan, and its radar cross-section (RCS) value is 2.0047.
Physical Characteristics
Length
3.2
Diameter
1.3
Span
15
Dry Mass
300
Launch Mass
570
Shape
Box + 2 Pan
Radar Cross Section
2.0047
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
BS 3B
Purpose
Communication
Mission
Communication
Manufacturer
GEEW
Life Expectancy
Unknown
Bus
AS3000
Configuration
AS-3000
Motor
H-1 AKM
Equipment
3 (+3) Ku-band transponders 120W TWTA, 27 MHz bandwidth, EIRP max 54 dBW
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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